TWI829500B - Fixing fixture for testing assembled circuit boards - Google Patents

Abstract

A fixed fixture for testing assembled circuit boards, including a moving device, a first slide rail, a second slide rail and a positioning structure. The mobile device moves in the first direction. The first slide rail is arranged on the mobile device. The second slide rail is located on one side of the mobile device. The positioning structures are respectively provided on the first slide rail and the second slide rail, move in the second direction along the first slide rail and the second slide rail, and are used to jointly fix the test assembly circuit board. Thereby, the positioning structures can secure a small area of the test assembly circuit board without contacting components close to the edge of the test assembly circuit board. Therefore, the edge of the test assembly circuit board has sufficient space to be used as a test reference point for probe contact. Multiple components can also be installed without interference or damage to the components. Test assembly circuit boards of different shapes can also be fixed.

Description

Fixing fixture for testing assembled circuit boards

The invention relates to a fixture, in particular to a fixing fixture for testing assembled circuit boards.

The Flying-Probe method is a common detection method for testing assembled circuit boards. Its principle is to contact and energize two test reference points of each circuit on the assembled circuit board through at least two probes at the same time. The obtained resistance value is compared with the set resistance value to determine whether there is a short circuit or to perform electrical tests on the value and electrical characteristics of electronic components.

Before flying probe testing, the test assembly circuit board is fixed on the machine table. Specifically, the conventional machine includes two slide rails, a fixed fixture and a movable fixture. The slide rails are respectively provided on the left and right sides of the machine. The fixed fixture is provided on the bottom of the machine, and the two movable fixtures are The ends are respectively arranged on the slide rails. The mobile clamp moves along the slide rails in the vertical direction between the fixed clamp and the top of the machine platform. The fixed clamp clamps the entire bottom edge of the test assembly circuit board, and the movable clamp clamps the entire top edge of the test assembly circuit board.

However, the bottom edge of the test assembly circuit board is blocked by the fixed fixture, and the top edge of the test assembly circuit board is blocked by the moving fixture. There is no space between the bottom edge and the top edge of the test assembly circuit board as a test reference point for probe contact, resulting in There is no way to conduct flying probe testing of components close to the bottom and top edges of the test assembly board.

Furthermore, if multiple components are provided on the bottom edge and top edge of the test assembly circuit board, the entire bottom edge of the test assembly circuit board will not be enough to be clamped by the fixing fixture, and the test assembly circuit board The entire top edge of the assembled circuit board will not be enough space to be clamped by the moving clamp. Even if the fixed clamp is forced to clamp the entire bottom edge of the test assembly circuit board, and the moving clamp is barely clamped to the entire top edge of the test assembly circuit board, the fixed clamp will pinch components close to the bottom edge of the test assembly circuit board and move The clamps can pinch components near the top edge of the test assembly circuit board, and the fixation effect is greatly affected. Therefore, components are usually not placed on the bottom edge and top edge of a general test assembly circuit board, which facilitates clamping by fixed fixtures and moving fixtures, but at the expense of the usable area of the test assembly circuit board.

In addition, the general test assembly circuit board is rectangular, but some test assembly circuit boards are used in special environments and are made into other shapes, such as circular or irregular shapes. Conventional machines can only fix test assembly circuit boards of one shape and cannot fix test assembly circuit boards of other shapes. Therefore, test assembly circuit boards of different shapes require customized fixtures, which increases manufacturing costs and takes up space. .

The main purpose of the present invention is to provide a fixture for testing an assembled circuit board that can fix a small area of the tested assembled circuit board without touching components close to the edge of the tested assembled circuit board.

Another object of the present invention is to provide a fixture for testing assembled circuit boards, which can fix test assembled circuit boards of different shapes.

In order to achieve the aforementioned objectives, the present invention provides a fixing fixture for testing assembled circuit boards, which includes a moving device, at least a first slide rail, at least a second slide rail, and a plurality of positioning structures. The moving device moves in a first direction. The at least one first slide rail is provided on the mobile device. The at least one second slide rail is located on one side of the mobile device. The positioning structures are respectively arranged on the at least one first A slide rail and the at least a second slide rail move in a second direction along the at least a first slide rail and the at least a second slide rail, and are used to jointly fix a test assembly circuit board.

In some embodiments, each positioning structure includes a first positioning member and a second positioning member. The first positioning member is disposed on the at least one first slide rail or the at least one second slide rail and along the at least one positioning member. A first slide rail or the at least one second slide rail moves in the second direction. The second positioning member is disposed on the first positioning member and used to fix the test assembly circuit board on the first positioning member. superior.

In some embodiments, the at least one first slide rail defines a first slide groove, the at least one second slide rail defines a second slide groove, the first positioning component includes at least one body and at least one slide block, At least one slider is disposed on the at least one body, located in the first chute or the second chute, and moves in the second direction along the first chute or the second chute, the second The positioning component is provided on the at least one body and is used to fix the test assembly circuit board on the first positioning component.

In some embodiments, the at least one first slide rail defines a first slide groove, the at least one second slide rail defines a second slide groove, and the first positioning component includes at least a body, at least a connecting portion and at least A slider, the at least one body is pivoted on the at least one connecting part, so that the at least one body rotates relative to the at least one connecting part, the at least one slider is disposed on the at least one connecting part, located on the first chute or In the second chute and moving in the second direction along the first chute or the second chute, the second positioning member is disposed on the at least one body and is used to fix the test assembly circuit board on the first positioning member.

In some embodiments, the second positioning component includes at least one body and at least one second clamping part. The at least one body moves in a third direction, and the at least one second clamping part is provided on the at least one body and Used to fix the test assembly circuit board on the first positioning member.

In some embodiments, the first positioning member includes at least one first column, the at least one first column is disposed on the at least one body, the second positioning member includes at least a second column, and the at least one first column Two columns penetrate the at least one body and are fixed to the at least one first column. The at least one body moves in the third direction along the at least one second column and selectively abuts the at least one first column. cylinder.

In some embodiments, the at least one second column includes at least one head and at least one rod. The at least one head is provided at one end of the at least one rod. The at least one rod penetrates the at least one body and The other end is fixed to the at least one first column, and the second positioning member includes at least one elastic member. The at least one elastic member is provided on the at least one rod portion and its two ends respectively abut against the at least one body and the At least one head.

In some embodiments, the first positioning member includes at least one first clamping part, the at least one first clamping part is disposed on the at least one body, the at least one first clamping part and the at least one second clamping part One of the holding parts has at least one protrusion, the at least one first holding part and the other of the at least one second holding part form at least one groove, and the at least one protrusion passes through the test assembly At least one fixing hole of the circuit board is inserted into the at least one groove, so that the at least one second clamping part fixes the test assembly circuit board on the at least one first clamping part.

In some embodiments, the fixing fixture for testing the assembled circuit board further includes an outer frame, at least a third slide rail and at least a fourth slide rail, the at least a second slide rail, the at least a third slide rail The slide rail and the at least one fourth slide rail are respectively provided on the outer frame. Two ends of the moving device are respectively provided on the at least one third slide rail and the at least one fourth slide rail, and the moving device moves along the At least one third slide rail and the at least one fourth slide rail move in the first direction.

The effect of the present invention is that the positioning structures fix a small area of the test assembly circuit board and do not contact components close to the edge of the test assembly circuit board. Therefore, the edge of the test assembly circuit board has sufficient space as a test reference point for probe contact. Multiple components can also be installed without interference or damage to the components, thereby increasing the usable area of the test assembly circuit board.

It is worth mentioning that the test fixture of the present invention can fix test assembly circuit boards of different shapes, effectively reducing manufacturing costs and taking up no space.

10:Outer frame

11:First side panel

12:Second side panel

13:Third side panel

14:Fourth side panel

20, 20A, 20B: mobile device

21:Plate body

22: Fasteners

23:Slider

30,30A: First slide rail

31:First chute

40,40A: Second slide rail

41:Second chute

50:Third slide rail

51:Third chute

60:Fourth slide rail

61:Fourth chute

70,80: Positioning structure

71,81: first positioning piece

711,811: Ontology

7111,8111:Head

7112,8112: handle

712,812:Slider

713,813:The first cylinder

714,814: First clamping part

7141,8141: Bump

715,815: Fasteners

816:Connection Department

8161: Fixed part

8162: Pivot joint

817:Pivot

72,82: Second positioning piece

721,821:Block

722,822:Second cylinder

7221,8221:Head

7222,8222: Rod

723,823: Second clamping part

7231: Groove

724,824: Elastic parts

100, 100A, 100B, 100C: Test assembled circuit boards

101:Fixing hole

Figure 1 is a perspective view of the first embodiment of the fixing fixture of the present invention.

Figure 2 is an exploded view of the first embodiment of the fixing fixture of the present invention.

Figure 3 is a front view of the first embodiment of the fixing fixture of the present invention.

Figure 4 is a rear view of the first embodiment of the fixing fixture of the present invention.

FIG. 5 is a schematic diagram of area V in FIG. 4 .

FIG. 6 is a schematic diagram of area VI in FIG. 4 .

Figure 7 is a perspective view of the single-axis positioning structure of the present invention.

Figure 8 is an exploded view of the single-axis positioning structure of the present invention.

Figure 9 is a perspective view of the biaxial positioning structure of the present invention.

Figure 10 is an exploded view of the biaxial positioning structure of the present invention.

Figure 11 is a rear view of the first embodiment of the fixing fixture of the present invention before the rectangular test assembly circuit board is fixed.

Figure 12 is a cross-sectional view of the first embodiment of the fixing fixture of the present invention for preparing to fix a rectangular test assembly circuit board.

Figure 13 is a cross-sectional view of a rectangular test assembly circuit board fixed by the first embodiment of the fixing fixture of the present invention.

Figure 14 is a perspective view of a rectangular test assembly circuit board fixed by the first embodiment of the fixing fixture of the present invention.

Figure 15 is a schematic diagram of the first embodiment of the fixing fixture of the present invention fixing a rectangular test assembly circuit board.

Figure 16 is a schematic diagram of the first embodiment of the fixing fixture of the present invention fixing a circular test assembly circuit board.

Figure 17 is a schematic diagram of the first embodiment of the fixing fixture of the present invention fixing an irregular-shaped test assembly circuit board.

Fig. 18 is a perspective view of the second embodiment of the fixing jig of the present invention.

Fig. 19 is a perspective view of the third embodiment of the fixing jig of the present invention.

The following is a more detailed description of the embodiments of the present invention with reference to drawings and component symbols, so that those skilled in the art can implement them after reading this specification.

Figure 1 is a perspective view of the first embodiment of the fixed fixture of the present invention. Figure 2 is an exploded view of the first embodiment of the fixed fixture of the present invention. Figure 3 is a perspective view of the first embodiment of the fixed fixture of the present invention. Front view, Figure 4 is a rear view of the first embodiment of the fixing fixture of the present invention, Figure 5 is a schematic diagram of the area V of Figure 4, and Figure 6 is a schematic diagram of the area VI of Figure 4. As shown in Figures 1 to 6, the present invention provides a fixed fixture for testing assembled circuit boards, including an outer frame 10, a moving device 20, a first slide rail 30, a second slide rail 40, a third The slide rail 50, a fourth slide rail 60 and a plurality of positioning structures 70, 80.

As shown in Figures 1, 2 and 3, the outer frame 10 includes a first side plate 11, a second side plate 12, a third side plate 13 and a fourth side plate 14. The first side plate 11 and the second side plate 12 are The positions of the third side plate 13 and the fourth side plate 14 are opposite.

As shown in FIGS. 1 to 4 , the first slide rail 30 is provided on the mobile device 20 and opens a first slide groove 31 . The second slide rail 40 is provided on the second side plate 12 and is located on one side of the mobile device 20 and opens a first slide rail 31 . A second slide groove 41, a third slide rail 50 is provided on the third side plate 13 and defines a third slide groove 51, and a fourth slide rail 60 is provided on the fourth side plate 14 and defines a fourth slide groove 61.

As shown in FIGS. 1 to 5 , two ends of the moving device 20 are respectively disposed on the third slide rail 50 and the fourth slide rail 60 , and the moving device 20 moves along the third slide rail 50 and the fourth slide rail 60 on a first It moves in one direction (ie, the Y-axis direction indicated in FIG. 1 ) between the first side plate 11 and the second side plate 12 . To be more clear, the moving device 20 includes a plate body 21, a plurality of fasteners 22 and a plurality of slide blocks 23. The fasteners 22 fix the slide blocks 23 at both ends of the plate body 21. The slide blocks 23 are located in the third chute 51 and the fourth chute 61 respectively.

As shown in FIGS. 1 to 4 , the positioning structures 70 and 80 are respectively disposed on the first slide rail 30 and the second slide rail 40 and along the first slide rail 30 and the second slide rail 40 in a second direction ( That is, it moves in the X-axis direction (marked in Figure 1). More specifically, each positioning structure 70, 80 includes a first positioning member 71, 81 and a second positioning member 72, 82. The first positioning member 71, 81 is disposed on the first slide rail 30 or the second slide rail 40. And moving along the first slide rail 30 or the second slide rail 40 in the second direction, the second positioning parts 72 and 82 are arranged on the first positioning parts 71 and 81. The positioning structures 70 and 80 have two implementation forms. The first implementation form is a single-axis positioning structure 70, and the second implementation form is a dual-axis positioning structure 80. The single-axis positioning structure 70 and the double-axis positioning structure 70 will be introduced in sequence below. Shaft positioning structure 80.

FIG. 7 is a perspective view of the single-axis positioning structure 70 of the present invention, and FIG. 8 is an exploded view of the single-axis positioning structure 70 of the present invention. As shown in Figures 7 and 8, the single-axis positioning structure 70 is first introduced. The first positioning member 71 includes a body 711, a slider 712, a first cylinder 713 and a first clamping part 714. The slider 712, the first cylinder 713 and the first clamping part 714 are all provided on the body. 711. In more detail, the first positioning member 71 includes three fasteners 715. The body 711 includes a head 7111 and a handle 7112. One of the fasteners 715 locks the slider 712 to the head 7111. The other two fasteners 715 respectively lock the first cylinder 713 and the first clamping part 714 to the handle 7112. The slider 712 is located on a first side of the body 711, and the first cylinder 713 Both the first clamping part 714 and the first clamping part 714 are located on a second side of the body 711; the first clamping part 714 has a protrusion 7141. As shown in FIGS. 4 and 5 , the slide block 712 is located in the first slide groove 31 or the second slide groove 41 . As shown in FIGS. 7 and 8 , the second positioning member 72 includes a block 721 , a second column 722 and a second clamping part 723 . The second column 722 penetrates the block 721 and is fixed to the first column. 713, the block 721 moves along the second cylinder 722 in a third direction (ie, the Z-axis direction marked in FIG. 1) and selectively abuts the first cylinder 713, and the second clamping portion 723 Set in block 721. Specifically, the second column 722 includes a head 7221 and a rod 7222. The head 7221 is provided at one end of the rod 7222. The rod 7222 penetrates the block 721 and its other end is fixed to the first column 713; The second positioning member 72 includes an elastic member 724. The elastic member 724 is provided on the rod portion 7222 and its two ends are respectively against the block 721 and the head 7221; one end of the second clamping portion 723 is fixed to the block 721, and A groove 7231 is formed at the other end of the second clamping part 723 (see Figure 12).

FIG. 9 is a perspective view of the biaxial positioning structure 80 of the present invention, and FIG. 10 is an exploded view of the biaxial positioning structure 80 of the present invention. As shown in Figures 9 and 10, the biaxial positioning structure 80 will be introduced next. The first positioning member 81 includes a body 811, two sliders 812, a first cylinder 813, a first clamping part 814 and a connecting part 816. The main body 811 is pivoted on the connecting part 816 so that the main body 811 is opposite to the connecting part 811. 816 rotates, the sliders 812 are arranged on the connecting part 816, and the first cylinder 813 and the first clamping part 814 are both arranged on the body 811. In more detail, the first positioning member 81 includes four fasteners 815 and a pivot 817. The body 811 includes a head 8111 and a handle 8112. The connecting part 816 includes a fixed part 8161 and a pivot part 8162. Two of the fasteners 815 lock the sliders 812 to the fixing part 8161, and the other two of the fasteners 815 lock the first cylinder 813 and the first clamping part 814 to the handle respectively. 8112, the pivot 817 penetrates the head 8111 and the pivot part 8162, so that the head 8111 rotates around the pivot 817 relative to the pivot part 8162, the slider 812 is located on a first side of the body 811, and the first cylinder 813 and The first clamping portion 814 is located on a second side of the body 811; the first clamping portion 814 has a protrusion 8141. As shown in Figures 4 and 6, the slider 812 is located in the first slide groove 31 or the second slide groove 31. in slot 41. As shown in FIGS. 9 and 10 , the second positioning member 82 includes a block 821 , a second column 822 and a second clamping part 823 . The second column 822 penetrates the block 821 and is fixed to the first column. 813, the block 821 moves along the second cylinder 822 in a third direction (ie, the Z-axis direction marked in FIG. 1) and selectively abuts the first cylinder 813, and the second clamping portion 823 Set in block 821. Specifically, the second cylinder 822 includes a head 8221 and a rod 8222. The head 8221 is provided at one end of the rod 8222. The rod 8222 penetrates the block 821 and its other end is fixed to the first cylinder 813; The second positioning member 82 includes an elastic member 824. The elastic member 824 is provided on the rod portion 8222 and its two ends are respectively against the block 821 and the head 8221; one end of the second clamping portion 823 is fixed to the block 821, and The other end of the second clamping part 823 forms a groove (not shown).

In some embodiments, the positioning structure may also include multiple connecting parts, and the multiple connecting parts may be pivoted to each other and capable of rotating with each other, so that the positioning structure becomes a multi-axis positioning structure.

The following will describe how the first embodiment of the fixing fixture of the present invention fixes test assembly circuit boards 100, 100A, 100B, and 100C of different shapes.

FIG. 11 is a rear view of the rectangular test assembly circuit board 100 before the fixing fixture is fixed in the first embodiment of the present invention. FIG. 12 is the cross-section of the rectangular test assembly circuit board 100 in preparation for fixing the fixing fixture in the first embodiment of the present invention. Figure 13 is a cross-sectional view of a fixed rectangular test assembly circuit board 100 according to the first embodiment of the fixing fixture of the present invention. Figure 14 is a perspective view of the fixed rectangular test assembly circuit board 100 according to the first embodiment of the fixing fixture of the present invention. . First, as shown in Figure 11, the plate body 21 is driven by an external force (usually an external driving device and a control device or manual operation, not shown), so that the plate body 21 passes through the sliders 23 (see Figures 4 and 4). 5) Move along the third slide groove 51 and the fourth slide groove 61 toward the rectangular test assembly circuit board 100 in the first direction until the board body 21 is close to the rectangular test assembly circuit board 100. Then, as shown in Figure 11, the four single-axis positioning structures 70 move along the first slide through the slide blocks 712 (see Figures 7 and 8). The groove 31 and the second slide groove 41 move toward the rectangular test assembly circuit board 100 in the second direction until the four uniaxial positioning structures 70 are close to the fixing holes 101 at the four corners of the rectangular test assembly circuit board 100 . Then, as shown in FIG. 12 , the block 721 is pulled, and the block 721 moves in the third direction along the rod portion 7222 and away from the first positioning member 71 , so that the elastic member 724 is compressed by the block 721 and the second clamping portion 723 Away from the first clamping portion 714 , the bump 7141 is aligned with and penetrates the fixing hole 101 of the rectangular test assembly circuit board 100 . Furthermore, as shown in FIG. 13 , when the block 721 is released, the elastic force of the elastic member 724 drives the block 721 to move toward the first positioning member 71 in the third direction along the rod 7222 until the block 721 abuts the first column. Up to the body 713 , the protrusions 7141 are inserted into the grooves 7231 , so that the second clamping part 723 fixes the rectangular test assembly circuit board 100 on the first clamping part 714 . Finally, as shown in FIG. 14 , the four single-axis positioning structures 70 are jointly fixed to the fixing holes 101 at the four corners of the rectangular test assembly circuit board 100 .

In some embodiments, the user can choose four biaxial positioning structures 80 to be fixed together in the fixing holes 101 at the four corners of the rectangular test assembly circuit board 100 , or choose the single-axis positioning structure 70 to be fixed together with the biaxial positioning structure 80 The fixing holes 101 at the four corners of the rectangular test assembly circuit board 100 are assembled.

The above is only an example. In fact, a plurality of fixing holes 101 are distributed at any position of the rectangular test assembly circuit board 100 (for example, the four corners, left and right sides, top edge, bottom edge), and the user can choose to position these The structures 70, 80 are fixed to the fixing holes 101 at any position.

FIG. 15 is a schematic diagram of a rectangular test assembly circuit board 100A fixed by the first embodiment of the fixing fixture of the present invention. As shown in Figure 15, four biaxial positioning structures 80 are fixed on the fixing holes (not shown) at the four corners of the rectangular test assembly circuit board 100A, and one single-axis positioning structure 70 is fixed on the middle of the rectangular test assembly circuit board 100A. a fixing hole (not shown) on the top edge of the rectangular test assembly circuit board 100A, and a single-axis positioning structure 70 is fixed on the fixing hole (not shown) on the middle bottom edge of the rectangular test assembly circuit board 100A Show). To be more clear, because the rectangular test assembly circuit board 100A has a longer length and is easier to deform in the middle, in addition to the fixing holes at the four corners being fixed by the four biaxial positioning structures 80, the fixing holes at the top edge of the middle and The fixing holes at the bottom edge need to be fixed by multiple single-axis positioning structures 70 to prevent the middle deformation of the rectangular test assembly circuit board 100A.

In some embodiments, the user can choose multiple single-axis positioning structures 70 , multiple dual-axis positioning structures 80 , or any combination of the two to be jointly fixed to the fixing holes at the four corners and the middle of the rectangular test assembly circuit board 100A. Fixing holes on the top edge and fixing holes on the bottom edge.

The above is just an example. In fact, a plurality of fixing holes are distributed at any position of the rectangular test assembly circuit board 100 (for example, the four corners, left and right sides, top edge, bottom edge). The user can choose to position these positioning structures 70 and 80 are fixed to the fixing holes 101 at any position.

FIG. 16 is a schematic diagram of the first embodiment of the fixing jig of the present invention for fixing a circular test assembly circuit board 100B. FIG. 17 is a schematic diagram of the first embodiment of the fixing jig of the present invention for fixing an irregular test assembly circuit board 100C. . As shown in Figures 16 and 17, and please refer to Figures 9 and 10, the head 8111 rotates around the pivot 817 relative to the pivot portion 8162 to adjust the angle between the handle 8112 and the pivot portion 8162, so that the bump 8141 It can be aligned with and inserted into the fixing holes (not shown) of the circular test assembly circuit board 100B or the irregular assembly circuit board 100C. Specifically, because the positions of the fixing holes of the circular test assembly circuit board 100B and the irregular test assembly circuit board 100C are not fixed, the circular test assembly circuit must be fixed through the angle-adjustable biaxial positioning structure 80 Board 100B or irregular-shaped test assembly circuit board 100C. The body 711 of the first positioning member 71 of the single-axis positioning structure 70 is fixed by the fastener 715 and cannot be rotated to adjust the angle. The body 811 of the first positioning member 81 of the dual-axis positioning structure 80 can be rotated by the pivot 817. The angle is adjusted so that the biaxial positioning structure 80 is suitable for fixing the circular test assembly circuit board 100B or the irregular test assembly circuit board 100C.

Preferably, as shown in Figures 5 and 6, the sliders 23, 712, and 812 are rectangular. Therefore, the slide blocks 23 , 712 , and 812 will not rotate in the first slide groove 31 , the second slide groove 41 , the third slide groove 51 , and the fourth slide groove 61 .

Preferably, the slide blocks 23, 712, 812 are rectangular nuts.

In some embodiments, the mobile device 20 further includes a plurality of spring washers (not shown), and the spring washers are respectively disposed between the plate body 21 and the sliders 23; the positioning structure 70 further includes a spring pad. piece (not shown), the spring washer is arranged between the head 7111 and the slider 712; the positioning structure 80 further includes a spring washer (not shown), the spring washer is arranged between the fixed part 8161 and the slider 812 between. These spring washers have the effect of absorbing vibration force, and are less likely to fall off from the first chute 31 , the second chute 41 , the third chute 51 and the fourth chute 61 under the influence of the vibration force.

In some embodiments, the first clamping parts 714 and 814 form grooves, and the other ends of the second clamping parts 723 and 823 have protrusions, which can also achieve the same effect.

In some embodiments, because the depth of the fixing holes of the test assembly circuit board is directly related to the thickness of the test assembly circuit board, the lengths of the bumps 7141 and 8141 can be adjusted to drill fixing holes of different depths, so that the present invention The first embodiment of the fixing fixture is capable of fixing test assembly circuit boards of different thicknesses.

In a preferred embodiment, the first direction shown in FIG. 1 is a vertical direction and the second direction is a horizontal direction. Therefore, FIG. 1 shows that the mobile device 20 moves vertically and the positioning structures 70 and 80 move horizontally. In some embodiments, the first direction may be a horizontal direction, and the second direction may be a vertical direction, so the mobile device 20 moves horizontally and the positioning structures 70 and 80 move vertically. In some embodiments, the first direction and the second direction are both oblique and perpendicular to each other, so the mobile device 20 and the positioning structures 70 and 80 both move diagonally. The above is just an example. In fact, the first direction can be any direction, and the second direction can be other directions different from the first direction.

Fig. 18 is a perspective view of the second embodiment of the fixing jig of the present invention. The difference between the second embodiment and the first embodiment is that the fixed fixture of the present invention further includes a mobile device 20A. The actual structure and arrangement of the mobile device 20A are exactly the same as the mobile device 20. The mobile device 20 is located close to the first embodiment. The side plate 11 and the moving device 20A are located close to the second side plate 12, and the second slide rail 40 is provided on the moving device 20A. When the second embodiment fixes the test assembly circuit board, the mobile device 20 and the mobile device 20A move toward the test assembly circuit board in the first direction along the third chute 51 and the fourth chute 61 at the same time until the mobile device 20 approaches. Until the top of the assembled circuit board is tested and the mobile device 20A is close to the bottom of the assembled circuit board, subsequent operating procedures are as described in the first embodiment.

Fig. 19 is a perspective view of the third embodiment of the fixing jig of the present invention. The difference between the third embodiment and the second embodiment is that the fixed fixture of the present invention further includes a moving device 20B, a first slide rail 30A and a second slide rail 40A. The moving device 20B is located close to the first side plate 11 , the mobile device 20 is located between the mobile devices 20A and 20B, the first slide rails 30 and 30A are respectively provided on two opposite sides of the mobile device 20, and the second slide rail 40A is provided on the mobile devices 20B. When the third embodiment fixes the test assembly circuit board and the test assembly circuit boards are respectively placed between two sides of the mobile device 20 and the mobile devices 20A, 20B, the mobile devices 20, 20A, 20B simultaneously move along the The third chute 51 and the fourth chute 61 move toward the test assembly circuit boards in the first direction until the moving devices 20, 20A, and 20B are close to the top and bottom of the test assembly circuit boards. Subsequent operations The procedure is as described in the first embodiment.

In some embodiments, the first slide rail 30 may be composed of a plurality of small rails. The small rails of the first slide rail are independent of each other, so the first chute in the small rails do not communicate with each other. Second slide rail 40 may be composed of a plurality of small tracks. The small tracks of the second slide rail are independent of each other, so the second slide grooves in the small tracks are not connected to each other. The positioning structures 70 and 80 are provided on the small tracks of the first slide rail and the small tracks of the second slide rail.

In some embodiments, there may be a plurality of third slide rails 50 and a plurality of fourth slide rails 60 , and two ends of the mobile device 20 are respectively disposed on the third slide rails 50 and the third slide rails 50 . Four slide rails 60.

To sum up, the fixing fixture of the present invention can fix a small area of the test assembly circuit board through the positioning structures 70 and 80, without fixing the entire bottom edge and the entire top edge of the test assembly circuit board, and will not block it at all. The entire bottom edge and the entire top edge of the assembled circuit board were tested and the fixation was excellent. Therefore, the bottom and top edges of the test assembly circuit board have sufficient space as test reference points for probe contact, and components on the bottom and top edges of the test assembly circuit board can be tested with flying probes. Furthermore, the positioning structures 70 and 80 will not come into contact with components close to the bottom edge and top edge of the test assembly circuit board. Therefore, multiple components can be disposed on the bottom edge and top edge of the test assembly circuit board and these components will not Interference and damage increase the area used for testing assembled circuit boards.

It is worth mentioning that the fixing fixture of the present invention can fix test assembly circuit boards of different shapes. Users do not need to customize a set of fixtures for test assembly circuit boards of different shapes, which effectively reduces manufacturing costs and does not take up space. space.

The above are only used to explain the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Therefore, any modifications or changes related to the present invention are made under the same spirit of the invention. , should still be included in the scope of protection intended by the present invention.

10:Outer frame

20:Mobile device

21:Plate body

22: Fasteners

30:First slide rail

40:Second slide rail

50:Third slide rail

60:Fourth slide rail

70,80: Positioning structure

Claims (3)

A fixed fixture for testing assembled circuit boards, including: a moving device that moves in a first direction; at least a first slide rail that is provided on the moving device and has a first slide groove; at least a second The slide rail is located on one side of the moving device and has a second slide groove; and a plurality of positioning structures, each positioning structure includes a first positioning member and a second positioning member, the first positioning member includes at least one The body, at least one slider, at least one first column and at least one first clamping part. The at least one slider is disposed on the at least one body, located in the first slide groove or the second slide groove, and along the The at least one first slide rail and the at least one second slide rail move in a second direction, the at least one first column is provided on the at least one body, and the at least one first clamping portion is provided on the at least one body. A body, the second positioning member includes at least one body, at least one second clamping part, at least one second column and at least one elastic member, the at least one second clamping part is provided on the at least one body, the at least One of the first clamping part and the at least one second clamping part has at least one protrusion, and the other one of the at least one first clamping part and the at least one second clamping part forms at least one recess. groove, the at least one protrusion passes through at least one fixing hole of a test assembly circuit board and is inserted into the at least one groove, so that the at least one second clamping portion fixes the test assembly circuit board on the at least one On the first clamping part, the at least one second cylinder includes at least one head and at least one rod. The at least one head is provided at one end of the at least one rod. The at least one rod penetrates the at least one body. And its other end is fixed to the at least one first column, and the at least one piece moves in the third direction along the at least one rod portion and selectively abuts against the to There is at least one first cylinder, the at least one elastic member is provided on the at least one rod part and its two ends respectively abut against the at least one body and the at least one head. The fixing fixture for testing assembled circuit boards according to claim 1, wherein the first positioning member includes at least one connecting portion, and the at least one body is pivoted on the at least one connecting portion, so that the at least one body is relative to the at least one connecting portion. A connecting part rotates, and the at least one slider is disposed on the at least one connecting part. The fixing fixture for testing assembled circuit boards according to claim 1, further comprising an outer frame, at least one third slide rail and at least one fourth slide rail, the at least one second slide rail and the at least one third slide rail. The rail and the at least one fourth slide rail are respectively provided on the outer frame, the two ends of the moving device are respectively provided on the at least one third slide rail and the at least one fourth slide rail, and the moving device moves along the at least one A third slide rail and the at least one fourth slide rail move in the first direction.

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